81107703

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{20161}}^1$

素因数の和:20319

約数の個数: 16

約数和(自身を含む): 120972000

約数和(自身を除く): 39864297

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 20161, 60483, 181449, 544347, 3003989, 9011967, 27035901, 81107703]

約数ペア:

[(1, 81107703), (3, 27035901), (9, 9011967), (27, 3003989), (149, 544347), (447, 181449), (1341, 60483), (4023, 20161)]